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Rounding to the Nearest 100: Free Printable Worksheets With Answers
Free printable worksheets for rounding to the nearest 100 (Grade 3 (US) / Year 4 (England)), with a mini number line for every question and an answer key.
Rounding worksheets
Round to the nearest 10, 100 or 1,000. Each question has a mini number line showing the two choices and the halfway point.
Tip: print the worksheet for your child and the answer key for yourself. Choose “Save as PDF” as the printer to keep a copy.
Round to the nearest 100
Look at the tens digit: 5 or more, round up. 4 or less, round down.
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📚 Curriculum sources: Common Core Grade 3: Number & Operations in Base Ten · National curriculum in England: mathematics
Our worksheets and games follow school curriculum standards (US Common Core and the national curriculum in England). Every answer key is worked out by the computer, not typed by hand.
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Examples
Look at the digit just to the right of the place you're rounding to. If it is 5 or more, round up; if it is 4 or less, round down. Numbers exactly halfway, like 350, round up to 400.
| Number | Nearest 100 |
|---|---|
| 4,609 | 4,600 |
| 3,154 | 3,200 |
| 6,645 | 6,600 |
| 6,223 | 6,200 |
| 1,608 | 1,600 |
| 2,297 | 2,300 |
Suggested for Grade 3 (US) / Year 4 (England).
Questions grown-ups ask
What's the rule for rounding?+
Look at the next digit to the right: 5 or more rounds up, 4 or less rounds down.
Why the little number lines?+
They show the two round numbers either side and the halfway point, so children can see which one is closer.